Service Manual

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CHAPTER 1: BEFORE YOU BEGIN
Turning O Your Computer
CAUTION: To avoid losing data, save and close all open les and exit all
open programs before you turn o your computer.
Save and close all open les and exit all open programs.1.
Click 2. Start → Shut Down.
e computer turns o after the operating system shutdown process 3.
nishes.
Ensure that the computer is turned o. If your computer did not 4.
automatically turn o when you shut down the operating system, press and
hold the power button until the computer turns o.
Recommended Tools
e procedures in this document may require the following tools:
Small at-blade screwdriver•
Phillips screwdriver•
BIOS executable update program available at • support.dell.com